首页> 外国专利> method for pretreatment of an object from a zirconium or zirconium alloy in the stromlosen separation of metallfilms and its application

method for pretreatment of an object from a zirconium or zirconium alloy in the stromlosen separation of metallfilms and its application

机译:膜分离过程中锆或锆合金中物体的预处理方法及其应用

摘要

A process for the electroless deposition of a metal layer on an article comprised of zirconium or a zirconium alloy is disclosed. The article is activated in an aged aqueous solution comprising from about 10 to about 20 grams per liter ammonium bifluoride and from about 0.75 to about 2 grams per liter of sulfuric acid. The solution is aged by immersion of pickled zirconium in the solution for at least about 10 minutes. The loosely adhering film formed on the article in the activating step is removed and the article is contacted with an electroless plating solution containing the metal to be deposited on the article upon sufficient contact with the article.
机译:公开了一种在由锆或锆合金构成的制品上化学沉积金属层的方法。该制品在老化的水溶液中被活化,该水溶液包含每升约10至约20克的氟化氢铵和每升硫酸约0.75至约2克的硫酸。通过将酸洗的锆浸入溶液中至少约10分钟来使溶液老化。除去在活化步骤中在制品上形成的松散粘附的膜,并使制品与包含要与制品充分接触时沉积在制品上的金属的化学镀溶液接触。

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